NOTE: The Tree-sitter API and documentation has changed and improved since this guide was created. I can't guarantee this is up to date.
Tree-sitter is the new way Atom is providing language recognition features, such as syntax highlighting, code folding, autocomplete, and more. In contrast to TextMate grammars, which work by regex matching, Tree-sitter will generate an entire syntax tree. But more on that can be found in it's own docs.
Here, we look at making one from scratch.
| //Regular Expressions for U.S. Phone Numbers | |
| // | |
| //See http://en.wikipedia.org/wiki/North_American_Numbering_Plan | |
| // | |
| //Spaces, dashes, or periods are allowed as separators. | |
| //Extensions can be recognized by several strings: #, x, x., ext, ext., extension | |
| // | |
| //Area code: $1$2 | |
| //Exchange code: $3 | |
| //Station code: $4 |
| .modalMask { | |
| display:none; | |
| } | |
| .modalMask.active { | |
| display:block; | |
| position:fixed; | |
| top:0; | |
| left:0; | |
| bottom:0; | |
| right:0; |
| /* just add either class .peel-br or .peel-tr to your bookmarklet link */ | |
| a.peel-br, a.peel-tr { | |
| display:inline-block; | |
| position:relative; | |
| padding:0.4em 0.6em; | |
| border:1px solid #B4B4B4; | |
| border-radius:5px; | |
| background-color:#E6E6E6; | |
| color:#333; |
| #!/bin/bash | |
| # 1 | |
| wget -qO root.zone http://www.internic.net/domain/root.zone | |
| # 2 | |
| cat root.zone | grep "IN\sNS" | awk '{print $1}' | uniq | sort | sed -r 's/\.//g' | sed '/^$/d' > zone.list 2> /dev/null | |
| # 3 |
| //getDimensions([elem]) | |
| //setScrollPosition(elem, top, left) | |
| (function (){ | |
| "use strict"; | |
| //**********************// | |
| //***** Dimensions *****// | |
| //**********************// |
| //month names, weekday names, and ordinal indicators are in English | |
| // Date.now() | |
| // Date.fromISOString(isoStr) | |
| // Date.timeBetween(date1, date2) | |
| // dat.isLeapYear() | |
| // dat.isUTCLeapYear() | |
| // dat.getDaysInMonth() | |
| // dat.getUTCDaysInMonth() | |
| // dat.getMonthName() |
| //Convert a number to a different base (e.g., from hex to decimal). | |
| //Returns a string representation of the number, or NaN if `num` does not represent a number of the specified base. | |
| function changeBase(num, fromRadix, toRadix){ | |
| if(!(1*fromRadix) || fromRadix%1 !== 0 || fromRadix < 2 || fromRadix > 36){ | |
| throw new RangeError(`'fromRadix' must be an integer between 2 and 36, inclusive.`); | |
| } | |
| if(!(1*toRadix) || toRadix%1 !== 0 || toRadix < 2 || toRadix > 36){ | |
| throw new RangeError(`'toRadix' must be an integer between 2 and 36, inclusive.`); | |
| } | |
| Function getUBound(arr) | |
| getUBound = -1 | |
| On Error Resume Next | |
| getUBound = UBound(arr) | |
| On Error GoTo 0 | |
| End Function | |
| Function getLength(arr) | |
| getLength = getUBound(arr) + 1 | |
| End Function |